Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
okbu.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 06:16:59 UTC · ↺ Refresh
MX Hostnames
- okbu-edu.mail.protection.outlook.com
MX Priorities
- okbu-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 146.190.13.15 (no PTR)
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-948.awsdns-54.net awsdns-hostmaster.amazon.com 2016021901 7200 900 1209600 86400
Primary NS (mname)
ns-948.awsdns-54.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2016021901
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1719.awsdns-22.co.uk
ns-5.awsdns-00.com
ns-948.awsdns-54.net
ns-1361.awsdns-42.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf1.okbu.edu include:spf2.okbu.edu include:spf3.okbu.edu -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;fo=1;ruf=mailto:[email protected];rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- adobe-idp-site-verification=fd329e40-374f-4043-a5e0-501e0ef646d9
- e2ma-verification=nszeb
- SPFv=spf1 include:spf.protection.outlook.com include:spf1.okbu.edu include:spf2.okbu.edu include:spf3.okbu.edu -all
- MS=ms81553267
Full email verification for okbu.edu
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